*{margin: 0; padding: 0;}
html, body{width: 100%; height: 100%;}

body{
    background: #434343;
}

.header{
    padding: 10px;
    color: #fff;
    line-height: 24px;
}
.header .title{
    padding: 10px 0;
}
.header a{
    color:#1890ff;    
}

.level, .tag{
    display: inline-block;
    font-size: 14px;
    padding: 4px 12px;
    margin-right: 5px;
    margin-bottom: 8px;
    border: 1px solid#1890ff;
}
.level[select], .tag[select]{
    background: #1890ff;
}

.bases{
    padding: 0 8px;
}

.base{
    width: 100%;
    position: relative;
    margin-top: 10px;
    padding-bottom: 60%;
    background-size: cover;
}
.base .btn-group{
    position: absolute;
    bottom: 10px;
    width: 100%;
    height: 40px;
    text-align: right;
}
.base .btn{
    display: inline-block;
    line-height: 24px;
    font-size: 14px;
    background: rgba(0, 0, 0, .4);
    color: #fff;
    padding: 4px 8px;
    text-decoration: none;
    border-radius: 8px;
}